#include <iostream>
#include <vector>
#include <unordered_map>
#include <unistd.h>
using namespace std;
int main()
{
  for(int i = 0; i < 100000; i++) {
    int* ptr = (int*)malloc(1024*1024*100);
    if(ptr == nullptr) {
      cerr << "err" << endl;
    }
    sleep(1);
  }
  while(1){}
  return 0;
}

